| #!/bin/bash |
| |
| PROG_NAME=`basename $0` |
| |
| function usage() { |
| echo "Usage:" |
| echo " $PROG_NAME <Base DTS> <Overlay DTS> <Output DTS>" |
| } |
| |
| function on_exit() { |
| rm -rf "$TEMP_DIR" |
| } |
| |
| # |
| # Start |
| # |
| |
| if [[ $# -lt 3 ]]; then |
| usage |
| exit 1 |
| fi |
| |
| BASE_DTS=$1 |
| OVERLAY_DTS=$2 |
| OUT_DTS=$3 |
| |
| TEMP_DIR=`mktemp -d` |
| # The script will exit directly if any command fails. |
| set -e |
| trap on_exit EXIT |
| |
| # Finds '/dts-v1/; and /plugin/;' then replace them with '/* REMOVED */' |
| OVERLAY_DTS_DIR=`dirname "$OVERLAY_DTS"` |
| OVERLAY_DTS_NAME=`basename "$OVERLAY_DTS"` |
| OVERLAY_DT_WO_HEADER_DTS="$TEMP_DIR/$OVERLAY_DTS_NAME" |
| sed "s/\\(\\/dts-v1\\/\\s*;\\|\\/plugin\\/\\s*;\\)/\\/\\* REMOVED \\*\\//g" \ |
| "$OVERLAY_DTS" > "$OVERLAY_DT_WO_HEADER_DTS" |
| |
| # Appends /include/ ...; |
| BASE_DTS_DIR=`dirname "$BASE_DTS"` |
| BASE_DTS_NAME=`basename "$BASE_DTS"` |
| BASE_DT_WITH_INC_DTS="$TEMP_DIR/$BASE_DTS_NAME" |
| cp "$BASE_DTS" "$BASE_DT_WITH_INC_DTS" |
| echo "/include/ \"$OVERLAY_DT_WO_HEADER_DTS\"" >> "$BASE_DT_WITH_INC_DTS" |
| |
| # Simulate device tree overlay |
| MERGED_DTB="$BASE_DT_WITH_INC_DTS.dtb" |
| dtc -@ -i "$BASE_DTS_DIR" -i "$OVERLAY_DTS_DIR" -O dtb -o "$MERGED_DTB" "$BASE_DT_WITH_INC_DTS" |
| |
| # Dump |
| dtc -s -O dts -o "$OUT_DTS" "$MERGED_DTB" |